.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
  }
  .breadcrumb a { color: var(--blue); text-decoration: none; font-weight: 600; }
  .breadcrumb a:hover { text-decoration: underline; }
  .breadcrumb-sep { color: var(--text-hint); font-size: 12px; }
  .breadcrumb-current { color: var(--text-muted); }

  .cat-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: 12px;
    background: #EBF1FE;
    color: var(--blue);
  }

  .article-header { margin-bottom: 20px; }
  .article-header h1 {
    font-size: 26px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--text);
  }

  .article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
    flex-wrap: wrap;
  }
  .meta-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--blue); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 800; flex-shrink: 0;
  }
  .meta-sep { color: var(--text-hint); }

  .article-cover {
    background: linear-gradient(135deg, #2155C4 0%, #4A80F0 100%);
    min-height: 260px;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    padding: 32px;
    margin-bottom: 24px;
  }
  .article-cover-emoji { font-size: 64px; margin-bottom: 14px; }
  .article-cover-title { font-size: 20px; font-weight: 800; line-height: 1.3; max-width: 560px; }

  .article-body { font-size: 17px; line-height: 1.8; color: var(--text); }
  .article-body h2 { font-size: 22px; font-weight: 800; margin: 40px 0 16px; color: var(--text); line-height: 1.3; }
  .article-body h3 { font-size: 18px; font-weight: 700; margin: 28px 0 12px; color: var(--text); }
  .article-body p { margin-bottom: 20px; }
  .article-body ul, .article-body ol { margin-bottom: 20px; padding-left: 22px; }
  .article-body li { margin-bottom: 8px; }
  .article-body strong { font-weight: 700; }

  .article-tip {
    background: var(--blue-light);
    border-left: 4px solid var(--blue);
    border-radius: 0 8px 8px 0;
    padding: 12px 16px;
    margin: 20px 0;
  }
  .tip-label {
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 4px;
    letter-spacing: .04em;
  }
  .article-tip p { margin-bottom: 0; color: var(--text); font-size: 14px; }

  .tip-warning {
    background: #FFF8E1;
    border-left-color: #F9A825;
  }
  .tip-warning .tip-label { color: #E65100; }

  .info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 20px 0;
  }
  .info-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
  }
  .info-card-icon { font-size: 28px; margin-bottom: 8px; }
  .info-card h4 { font-size: 13px; font-weight: 800; margin-bottom: 6px; }
  .info-card p { font-size: 12px; color: var(--text-muted); line-height: 1.5; margin: 0; }

  .code-block {
    background: #1A1D23;
    color: #E4E8EF;
    border-radius: var(--radius);
    padding: 18px 20px;
    font-family: monospace;
    font-size: 13px;
    line-height: 1.7;
    margin: 16px 0;
    overflow-x: auto;
    white-space: pre;
  }

  .mode-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin: 20px 0;
  }
  .mode-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 20px 18px;
  }
  .mode-card-icon { font-size: 28px; margin-bottom: 10px; }
  .mode-card h4 { font-size: 15px; font-weight: 800; margin-bottom: 8px; }
  .mode-card p { font-size: 13px; color: var(--text-muted); line-height: 1.55; margin: 0; }

  .article-divider {
    border: none;
    border-top: 1px solid #F0F2F5;
    margin: 36px 0;
  }

  /* Related */
  .related-section { margin-bottom: 24px; }
  .related-title { font-size: 18px; font-weight: 800; margin-bottom: 16px; }
  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
  .related-card {
    background: #fff;
    border: 1px solid #E4E8EF;
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: box-shadow .15s;
  }
  .related-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); }
  .related-cover {
    height: 90px;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
  }
  .related-body { padding: 12px 14px; }
  .related-body h4 { font-size: 13px; font-weight: 700; line-height: 1.4; color: var(--text); }

  .cta-block {
    background: linear-gradient(135deg, #2155C4 0%, #4A80F0 100%);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    color: #fff;
    margin-bottom: 24px;
  }
  .cta-block h2 { font-size: 24px; font-weight: 800; margin-bottom: 10px; }
  .cta-block p { font-size: 15px; opacity: .85; margin-bottom: 24px; }
  .btn-white {
    background: #fff;
    color: var(--blue);
    padding: 12px 28px;
    border-radius: 9px;
    font-family: 'Nunito Sans', sans-serif;
    font-size: 15px;
    font-weight: 800;
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: opacity .15s;
  }
  .btn-white:hover { opacity: .92; }

  @media (max-width: 640px) {
    .info-cards { grid-template-columns: 1fr; }
    .mode-cards { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .article-header h1 { font-size: 20px; }
  }
  .related-section { margin-top: 36px; }

  /* Image covers */
  .article-cover--image { padding:0; overflow:hidden; background:none; min-height:unset; }
  .article-cover--image .article-cover-img { width:100%; height:340px; object-fit:cover; border-radius:var(--radius-lg); display:block; }
  .related-cover--image { padding:0; overflow:hidden; }
  .related-cover--image img { width:100%; height:90px; object-fit:cover; display:block; }